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yEN'ED STATES PATENT OFEQQE@ JOHN G. HOTGHKISS, OF NEXV HAVEN, CONNECTICUT, AND JOI-IN A. DAVENPORT AND JOHN iV. QUINCY, OF NEV YORK, N. Y.

MAKING DOOR AND OTHER ENOES OE ALL KINDS OE CLAY USED IN POTTERY aan OE PORCELAIN.

Specification of Letters Patent No. 2,197, dated July 29, 1841.

To @ZZ whom t may concern Bc it known that we, JOHN G. HOTCH- Kiss, of the city and county of New Haven and State of Connecticut, and Jol-IN A. DAVENPORT and JOHN XV. QUINOY, bo-th oi' the city, county, and State of New York, have invented an improved method of making knobs for locks, doors, cabinet-furniture, and for all other purposes for which wood and metal or other material knobs are used.

This improvement consists in making said knobs of potters7 clay, such as is used in any species of potteiywalso of porcelain.

The operation is the same as in pottery by molding, turning, burning and glazing. They may be plain, in surface and color, or ornamented to any degree in both. The

modes of fitting` them for their application to doors, locks, furniture and other uses, will be as various as the uses to which they may be applied, but chiefly predicated on one principle-that of having the cavity in which the screw or shank is inserted, by which they are fastened-largest at the bottoniv of its depth, in form of a dovetail and a screw formed therein by pouring in metal in a fused state.

In the annexed drawing, A, represents a knob with a large screw inserted for drawers and similar purposes.

B represents a knob with a shank to pass through and receive a nut; O, the head of the knob calculated to receive a metallic neck; D, a knob, with a shank, calculated to receive a nut on the Outside or front.

lVhat we claim as our invention and desire to secure by Letters Patent is- The manufacturing knobs as stated in the foregoing specification, of potters clay or any kind of clay used in pottery, and shaped and iinished by molding, turning, burning and glazing; and also of porcelain.

J OHN G. HOTOHKSS. J. A. DAVENPORT. JOHN lV. QUNCY.

lVitnesses ALPH, SHERMAN, J AMES ls/IONTGOMERY. 

